1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff05cbfa85c6bbe04129acbaf8ee31db767e306ef50248eb797afddc90c8e35. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/423ceca4-a5a9-483d-b724-a92f889c761a.json and https://artists.proofprofile.net/proofs/artist/423ceca4-a5a9-483d-b724-a92f889c761a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa50f2347a57d1ab59e536961f0ba434fa808c62dc901e7793065c699edc068. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:59:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMJYX1760901.
Get Down (with Ya Bad Self) [feat. Justin Maxwell] - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4723d1c87e81a1a1818d4205389d3708c0fb307c9541b5c9cd3d98096e401a51. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMJYX1862401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2938b466756832ff2d4cf379b5611230f35fae0ed4087b46ed7702093184c27c. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMJYX1862402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0057ecbdd143940e5db36a24a32f3b9b2c53c117f192f0d497146eaaf1ad09df. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T16:24:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMJYX1862404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d569d66d67563eb4a3d44decbf04f4c8b4952bbf2879213eb922a0568d5d6cf. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMJYX1862407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5627e3f5c185973c6ea55c60666d77ff1880d7a4509f8fcc460dde0943e9a2e5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US25X1902274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e9c60f869c504300232d0f54ab3ad01ac348322d5564a45570601371e6c06e3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US25X1902275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec9492f2361f14bfc978afb208689120e20f6b3903c41834ecdfd7052242669. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US25X1902277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b1c85f4c646e07cd3b61fd239ad642756d2923da5728589baeb346b3ffccc7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US25X1902279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b30207e51cd6316e034c178632117688f75de794b07cf7cf5c7050e7fe1fb7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US25X1902280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x929ccdfc336d7c1cb376add35400db9c318d3c6271fa247fda1b58141a185106. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US25X1902281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e60969f7198d7fe45b26ccb4b37b5748ed355355838e11bf3f1e1a0da1a475. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US25X1902282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bdda188659bec013e7084609978ed6267905a870729a3b629dabc06f61f32e1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US25X1902283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42ac7b3055c46aafc5f3cff18fbde7ae4e07321b6e39865b0daf845bfcefda7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US25X1902284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f6f8951026a152d6e2e02e2a9d9d5c8ae2024f045013c217b7921b54079417. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBCFB2100762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe418573c4b0288126797377b6c2a08db2a1f409132f80f71e5c8d43d74b93460. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBCFB2100763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7bafec65cb709528f61bf122d976c3e8ee313d4d0759da115a760248475d41d. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:42:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBCFB2100782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56cca5d4558784e22837da66e3bc4e9e0f66aa723351062efef2bcdf8655460c. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBCFB2300682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6875945ede30de1d4362bfe31a91b08df126ec12a5b527fd904cd0bb7feb45a3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBCFB2300683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ca738b4f429295b8dd44db9fd9d751f0d63ce8f41bcd08b22fecb058fb4aa0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBCFB2300684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b5d6fd786784aa43843a2911160b02365280be1b33a6e8a299a950bb31e970c. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:36:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBCFB2300685.